Can not see flash preloader in iexplorer

HElp!! please!
If i visit any site with flash, and if it have a preloader, i cannot see its progress, the site just runs when the site has been loaded completely (as if it had a preloader, but it just “skips” that frames)…

it has not always been like it, but I need help, any of you know the answer?

thanx :book: